Add Feature: Mail-To Contacts

This commit adds support for contacting authors/contributors by email if they have added their contact information in accordance with the fabric.mod.json specification.
If an entry has contact information and if that contact information contains an email address, an email emoticon will be displayed next to their name in the menu.  Clicking a line with an email emoticon will prompt to open a mailto:address link.

- Add Feature: Mail-To Contacts

Author: tnoctua

src/main/java/com/terraformersmc/modmenu/gui/widget/DescriptionListWidget.java

@@ -4,6 +4,7 @@
 import com.terraformersmc.modmenu.config.ModMenuConfig;
 import com.terraformersmc.modmenu.gui.ModsScreen;
 import com.terraformersmc.modmenu.util.mod.Mod;
+import net.fabricmc.loader.api.metadata.ContactInformation;
 import net.minecraft.client.MinecraftClient;
 import net.minecraft.client.font.TextRenderer;
 import net.minecraft.client.gui.Click;
@@ -242,7 +243,12 @@ private void rebuildUI() {
 							indent = 16;
 
 							for (var line : textRenderer.wrapLines(Text.literal(contributor), wrapWidth - 24)) {
-								this.addEntry(new DescriptionEntry(line, indent));
+                                ContactInformation contact = mod.getContact(contributor);
+                                if (contact != null && contact.get("email").isPresent()) {
+                                    this.addEntry(new MailableContactEntry(line, contact.get("email").get(), indent));
+                                } else {
+									this.addEntry(new DescriptionEntry(line, indent));
+                                }
 								indent = 24;
 							}
 						}
@@ -392,4 +398,37 @@ public boolean mouseClicked(Click click, boolean doubleClick) {
 			return super.mouseClicked(click, doubleClick);
 		}
 	}
+
+    protected class MailableContactEntry extends DescriptionEntry {
+        private final String email;
+
+        public MailableContactEntry(OrderedText text, String email, int indent) {
+            super(text, indent);
+            this.email = email;
+        }
+
+        public MailableContactEntry(OrderedText text, String link) {
+            this(text, link, 0);
+        }
+
+        @Override
+        public void render(DrawContext drawContext, int mouseX, int mouseY, boolean isSelected, float delta) {
+            super.render(drawContext, mouseX, mouseY, isSelected, delta);
+            drawContext.drawTextWithShadow(textRenderer, Text.literal(" ").append(Text.literal("✉")), this.getContentX() + indent + textRenderer.getWidth(text) + 1, this.getContentY(), 0xFFAAAAAA);
+        }
+
+        @Override
+        public boolean mouseClicked(Click click, boolean doubled) {
+            if (isMouseOver(click.x(), click.y())) {
+                client.setScreen(new ConfirmLinkScreen((open) -> {
+                    if (open) {
+                        Util.getOperatingSystem().open("mailto:" + email);
+                    }
+                    client.setScreen(parent);
+                }, "mailto:" + email, false));
+            }
+
+            return super.mouseClicked(click, doubled);
+        }
+    }
 }

src/main/java/com/terraformersmc/modmenu/util/mod/Mod.java

@@ -7,6 +7,7 @@
 import com.terraformersmc.modmenu.config.ModMenuConfig;
 import com.terraformersmc.modmenu.util.mod.fabric.FabricIconHandler;
 import eu.pb4.placeholders.api.ParserContext;
+import net.fabricmc.loader.api.metadata.ContactInformation;
 import net.minecraft.client.resource.language.I18n;
 import net.minecraft.client.texture.NativeImageBackedTexture;
 import net.minecraft.text.Text;
@@ -80,6 +81,8 @@ default Text getFormattedDescription() {
 
 	@NotNull List<String> getAuthors();
 
+    ContactInformation getContact(String author);
+
 	/**
 	 * @return a mapping of contributors to their roles.
 	 */

src/main/java/com/terraformersmc/modmenu/util/mod/fabric/FabricDummyParentMod.java

@@ -7,6 +7,7 @@
 import com.terraformersmc.modmenu.util.mod.Mod;
 import net.fabricmc.loader.api.FabricLoader;
 import net.fabricmc.loader.api.ModContainer;
+import net.fabricmc.loader.api.metadata.ContactInformation;
 import net.minecraft.client.texture.NativeImageBackedTexture;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
@@ -94,6 +95,11 @@ public FabricDummyParentMod(FabricMod host, String id) {
 	}
 
 	@Override
+    public ContactInformation getContact(String author) {
+        return null;
+    }
+
+    @Override
 	public @NotNull Map<String, Collection<String>> getContributors() {
 		return Map.of();
 	}

src/main/java/com/terraformersmc/modmenu/util/mod/fabric/FabricMod.java

@@ -237,6 +237,21 @@ public FabricMod(ModContainer modContainer, Set<String> modpackMods) {
 		return authors;
 	}
 
+    @Override
+    public ContactInformation getContact(String author) {
+        for (Person person : metadata.getAuthors()) {
+            if (person.getName().equals(author)) {
+                return person.getContact();
+            }
+        }
+        for (Person person : metadata.getContributors()) {
+            if (person.getName().equals(author)) {
+                return person.getContact();
+            }
+        }
+        return null;
+    }
+
 	@Override
 	public @NotNull Map<String, Collection<String>> getContributors() {
 		var contributors = new LinkedHashMap<String, Collection<String>>();

src/main/resources/fabric.mod.json

@@ -99,7 +99,8 @@
     "Pyrrha",
 	"sakura-ryoko",
 	"gniftygnome",
-	"lowercasebtw"
+	"lowercasebtw",
+	"tnoctua"
   ],
   "description": "Adds a mod menu to view the list of mods you have installed.",
   "mixins": [